کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
601785 1454316 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Drying dissipative structures of lycopodium spore particles in aqueous dispersion
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Drying dissipative structures of lycopodium spore particles in aqueous dispersion
چکیده انگلیسی

Drying dissipative structures of aqueous dispersions of lycopodium particles (31 μm in average diameter) from the spores of Lycopodium clavatum were studied as a function of the particle concentrations in the presence and the absence of sodium chloride. The drying patterns formed on a cover glass, a watch glass and a Petri glass dish were observed macroscopically and microscopically. Lycopodium particles were the combination of hemisphere and tetrahedron in their shape and possessed the weakly acidic groups on their surfaces. The vague broad ring structure was observed even for the very large colloidal particles, and their size on a cover glass decreased as particle concentration decreased. Microscopic drying patterns almost disappeared except the short chain-like patterns. These observations support that the convectional contribution on the dissipative drying pattern formation is still effective in the lycopodium suspensions, though the convectional forces in the suspension are very weak compared with the sedimentation forces.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces B: Biointerfaces - Volume 80, Issue 2, 15 October 2010, Pages 193–199
نویسندگان
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